CN106199730B - Underground engineering induced polarization advance geologic prediction is wireless Fast Acquisition System and method - Google Patents
Underground engineering induced polarization advance geologic prediction is wireless Fast Acquisition System and method Download PDFInfo
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- CN106199730B CN106199730B CN201610506546.3A CN201610506546A CN106199730B CN 106199730 B CN106199730 B CN 106199730B CN 201610506546 A CN201610506546 A CN 201610506546A CN 106199730 B CN106199730 B CN 106199730B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention discloses the underground engineering polarization wireless Fast Acquisition Systems of advance geologic prediction, including bracket, install unpolarizable electrode in the side of bracket, the other side is equipped with the vacuum for bracket to be adsorbed onto face and module occurs；Sealing ring is used to support bracket set on face surface；Wireless collection and communication module are set on bracket, including wireless transport module and data acquisition module, data acquisition module are connect with unpolarizable electrode；Fast Acquisition System proposed by the present invention controls switching electrode by wireless telecommunications and avoids artificial race pole, realize the automation control of detection electrode acquisition transmission switching, each electrode is by single channel acquisition module parallel acquisition independent simultaneously, traditional acquisition order mode is improved, highly shortened acquisition time；Fast Acquisition System detection overall process speed proposed by the present invention is fast, and high-efficient, i.e., peace is surveyed, and can complete in each working procedure gap in tunnel, not influence normal construction.
Description
Technical field
The present invention relates to tunnel and underground passage engineering induced polarization advance geologic prediction field, specifically underground engineering
Polarize the wireless Fast Acquisition System of advance geologic prediction and method.
Background technique
With the Strategic Demand of rapid development and the nation-building of national economy, China's Tunnel Engineering construction project and day are all
Increase, construction difficulty is also increasing, and becomes world's tunnels and underground engineering construction scale maximum, the most fast state of construction speed
Family.By the end of the year 2013, China is completed vcehicular tunnel 11359, and 9606 kilometers of overall length；China has railway in operation tunnel
11074,8939 kilometers of overall length；Around multiple world-class hydraulic engineerings, building all kinds of Hydraulic Tunnels is more than 10000 kilometers.
However during constructing tunnel, often there is water-bearing structure along the area Sui Zhi, conduit pipe, muddy intercalation etc. is no
Good geologic body forms the disaster source for easily leading to the disasters such as the prominent mud of gushing water.In particular with hydraulic and hydroelectric engineering and traffic work
Journey constructing emphases are shifted to the extremely complicated western mountainous areas of topographic and geologic condition and karst area, and China's Tunnel Engineering has mostly
The features such as hole wire length, buried depth are big, geological environment is complicated, so that construction prospecting early period is difficult to the prominent mud disaster source of gushing water along determining.
So in the construction process for front of tunnel heading unfavorable geology body position, form, the forward probe for assigning regimen condition, for this
The prevention and control early warning of class accident is particularly important.
Currently, the geophysical exploration method used in constructing tunnel and equipment mainly have seismic reflection method, electrical method
And electromagnetic method.Electrical method class method for forecasting advanced geology mainly has mine tomography method and an induced polarization method, and induced polarization method pair
There is preferable advantage in terms of the position of water body and estimation water, thus induced polarization method is widely used in the prominent discharge disaster in tunnel
It is one of most promising Tunnel Engineering advance geology exploration method in the forward probe in source.Meanwhile using excitation in tunnel
There is also many problems during polarization method progress data acquisition:
1) during conventional detection, electrode is laid using the method for face drilling, needs to carry out in face a large amount of
Boring work, it is time-consuming and laborious；
2) a large amount of detection electrodes that face is laid (20 or more) have a large amount of cables, not only account in detection process
According to entire front of tunnel heading space, but also the processes such as detection take-up unwrapping wire are all very complicated, while a large amount of cables and electrode are difficult
To transport and carry；
3) traditional electrode itself has stronger polarity effect, and existing unpolarizable electrode and scar have biggish ground connection
Resistance, it is difficult to the induced polarization acquisition under the conditions of small ground resistance is realized, in addition, pole is run in the measurement of traditional electrode needs artificial hand
Dynamic operation, it is inconvenient, working efficiency is low.
Summary of the invention
In view of the above-mentioned problems, in order to solve the deficiencies in the prior art, the present invention provide it is a kind of be able to achieve Fast Installation, can
Avoid a large amount of face boring works, wirelessly transmit to be suitable for the underground engineerings polarization advance geologic such as tunnel pre-
Report wireless Fast Acquisition System and method.
To achieve the above object, the present invention adopts the following technical scheme:
The underground engineering polarization wireless Fast Acquisition System of advance geologic prediction, comprising:
Bracket installs unpolarizable electrode in the side of bracket, and the other side is equipped with for bracket to be adsorbed onto the true of face
Module occurs for sky, and bracket can be quick installed on face in this way, simple and convenient；
Sealing ring is used to support bracket set on face surface, is further ensured by the setting of sealing ring and do not polarized
Electrode stablizes installation；
Wireless collection and communication module are set on bracket, including wireless transport module and data acquisition module, data acquisition
Module is connect with unpolarizable electrode；
Data processing module, connect with data acquisition module and passes through wireless transport module and be transmitted to the information of acquisition
Test host.
Fast Acquisition System of the invention is able to achieve Fast Installation, and is connected by wireless transport module and test host
It connects, it is easy for installation without drilling, wiring.
Wireless transport module is integrated basis with monolithic transceiving chip, and link layer is integrated in module answers in order to embedded
With.It selects high rate data transmission to reduce the air transmission time, transmission collision is reduced while improving detection efficient.Integrated high-speed letter
Number processing part, communicated using answer-mode, automatically generate answer signal and retransmit lost data packets, avoid communication packet loss generate
Detection data lose.
Data processing module sets key switch in processing module, opens to control each module work of acquisition communication apparatus
Then wireless transport module works switch.Wireless transport module receive industrial personal computer command signal after, control acquisition module be isolated filter
The work of wave module controls wireless transport module for acquisition data feedback immediately and gives test host.
Test main computer unit is made of upper industrial personal computer and time-sharing multiplex wireless transport module.Wherein, industrial personal computer installation is special
There is acquisition software, to the sending of control instruction and the collection of detection data and storage；Time-sharing multiplex wireless transport module can
Realize that the same period of probe instructions and detection data sends and receives.
Further, the data processing module is set to rack surface or inside, overhauls for convenience, is preferably disposed to bracket
Surface.
Further, it takes for convenience, the bracket is the cylinder of boring, because bracket will be fixed on face
On, the unpolarizable electrode is in the cylinder and end is prominent from bracket, and when installation, the nose portion of unpolarizable electrode passes through branch
Support ring and rock face.
Further, it is vacuum pump that module, which occurs, for the vacuum, and vacuum pump is connect with governor, or selects speed regulation vacuum
Pump, and vacuum pump connects to power supply, and power supply is dry cell and the movement for passing through switch control vacuum pump.
Further, isolation filter module, the data are equipped between the data acquisition module and data processing module
Acquisition module is single channel electric signal data sampling card, and the signal acquisition module is with degree of precision, resolution ratio and to adopt
Collect the single channel electric signal data sampling card of frequency, data acquisition module is connected using unpolarizable electrode as quilt with unpolarizable electrode
Unit to be surveyed, wherein electric signal is acquired under data processing module control, acquisition information is cached via A/D chip translated data, etc.
Module instruction to be processed is sent by wireless transport module.
The isolation filter Module-embedding data acquisition module be isolated and by eight rank Butterworths to acquisition signal
Filter filtering reduces noise, improves signal-to-noise ratio.
Further, the one end of the unpolarizable electrode be conductive fabric encapsulation electrode tips, electrode tips with
Electrode container connects, and copper-bath is stored in electrode container, after copper-bath penetrates into electrode tips, forms pureed conduction and is situated between
Matter, so that entire electrode tips are flexibility, the electrode tips that face is extruded in after being installed can be with uneven
Face model deformation, thus with face good coupling；Helical form copper wire, copper wire are fixed with upwards from bottom in electrode container
It is infiltrated in copper-bath, it is poor that polarization potential is reduced by the ion exchange conduction between copper-bath and copper wire,
Effect of induced polarization detection is met to require.Electrode container Basolateral end is equipped with mantle fiber, and copper wire is in the exposing of electrode container bottom and outside
The connection of wiring cable.
Further, material is crystalline flake graphite in electrode tips.
Further, the porous ceramics material passed through for copper-bath is equipped between the electrode container and electrode tips
Expect that cover board, the cover board are fixedly connected with electrode tips.
Further, the sealing ring is the prefabricated sealing ring of ethyl alcohol substrate guar gum, and when use is padded on face and adopts
Between collecting system, sealing ring material is in solid gel shape on wet face, can be filled up completely adsorption plane and coarse face
Between gap, and sealing ring material be natural medicine, construction environment will not be polluted.
Underground engineering polarizes the wireless Quick Acquisition method of advance geologic prediction, using the wireless Fast Acquisition System,
Specifically used method is as follows:
1) multiple measuring points are selected in the face setting of underground engineering；
2) sealing ring is placed on measuring point；
3) module occurs by vacuum to be adsorbed on bracket absorption on face by sealing ring；
4) data acquisition module measuring electrode electrical potential information is controlled by test host and feeds back to test host.
Specifically, the specific steps are as follows:
(1) technical staff, which carries, quickly arranges that wireless exploration device enters tunnel tunnel face region to be detected, according to reality
Face situation chooses measurement point number and position.
(2) corresponding standalone probe device is taken according to selected measure-point amount, sealing ring will rise and fall not on wet face
The device integration module adsorption plane of rapid installation device is pressed inward against on face sealing ring after flat place's filling completely, is opened
Module work occurs for governor control vacuum after power supply and switch, and after hours to vacuum pump, wireless quickly arrangement apparatus is then
It is quickly arranged in face designated position, opens the test host lists to be received such as acquisition communication apparatus processing module switch immediately
The probe instructions of member.It is sequentially arranged on other faces device for quick collecting later as M measuring point.In addition, on tunnel rear portion side
Arrange a device for quick collecting as N measuring point using same way at wall.
(3) probe software of test main computer unit is opened, host computer transmission module sends acquisition and refers to after tunnel side wall power supply
It enables, detection device wireless transport module successively receives instruction, and processing module controls acquisition module and acquires connected contact not pole
Polarizing electrode electrical potential information, after acquiring data via isolation filter resume module, data feedback to industrial personal computer is deposited by industrial personal computer immediately
Storage.Each module acquisition is synchronous to be carried out, and detection rate is greatly improved.
(4) after the completion of data acquisition, 3-d inversion positioning imaging is carried out for the unfavorable geologic body being likely to occur, in forward modeling
The 3 D resistivity image of working face front geological body is obtained through inverting iteration on the basis of calculating, realizes that the three-dimensional of water content is fixed
Position.
The beneficial effects of the present invention are:
1) Fast Acquisition System proposed by the present invention realize measuring electrode tunnel tunnel face quickly and easily arrange with
It is reliable fixed, a large amount of drillings of conventional detection process are avoided, the detection of tunnel induced polarization advanced prediction is greatly shortened
Electrode disposes the time, simplifies placement process, improves detection efficient.
2) Fast Acquisition System proposed by the present invention realizes transmission instruction and detection number between host and each detection electrode
According to wireless transmission, but also entire detection process need not occupy entire working face while avoiding a large amount of cables complicated arrangement
Front space.
3) Fast Acquisition System proposed by the present invention cooperates air negative pressure to be extruded in face by not Polarization Coupling electrode
Mode overcome that traditional metal electrodes itself are polarized insufficient and the larger disadvantage of existing unpolarizable electrode ground resistance, realize
Induced polarization data contact acquisition.
4) Fast Acquisition System proposed by the present invention controls switching electrode by wireless telecommunications and avoids artificial race pole, realizes
The automation control of detection electrode acquisition transmission switching, while each electrode adopted parallel by single channel acquisition module independent
Collection, improves traditional acquisition order mode, highly shortened acquisition time.
5) Fast Acquisition System detection overall process speed proposed by the present invention is fast, and high-efficient, i.e., peace is surveyed, can be each in tunnel
Working procedure gap is completed, and normal construction is not influenced.
6) each equipment of Fast Acquisition System proposed by the present invention and intermodule are mutually indepedent, maintenance easy to repair, and will not
In operation field because individual modules problem influences entire detection process.
Detailed description of the invention
Fig. 1 is wireless device for quick collecting operation schematic diagram of the invention；
Fig. 2 is wireless device for quick collecting diagrammatic cross-section of the invention；
Fig. 3 is wireless Quick Acquisition equipment schematic diagram of the invention；
Fig. 4 is present invention acquisition communication apparatus schematic diagram；
Fig. 5 is contact unpolarizable electrode equipment schematic diagram of the present invention；
Wherein, 1. wireless device for quick collecting, 2. brackets, 3. unpolarizable electrodes, 4. wireless collections and communication unit, 5. mud
Module, 7. sealing rings, 8. power supplys and switch, 9. vacuum pumps, 10. governors, 11. electric signals occur for shape conducting medium, 6. vacuum
Acquisition module, 12. isolation filter modules, 13. wireless transmissions and data processing module, 14. single channel capture cards, 15. isolation modes
Block, 16. filter modules, 17. wireless communication modules, 18. data processing modules, 19. electrode containers, 20. ceramic cover plates, 21. sulfuric acid
Copper solution, 22. helical form copper wires, 23. electrode tips, 24. conductive fabrics.
Specific embodiment
The invention will be further described with specific embodiment with reference to the accompanying drawings of the specification:
The underground engineering polarization wireless Fast Acquisition System of advance geologic prediction provided by the invention, by bracket 2, contact is not
Polarizing electrode 3, wireless collection and communication unit 4 and test host composition.
As shown in Figures 2 and 3, multiple modules are set on bracket 2 and integrate card slot, contact unpolarizable electrode 3, and vacuum occurs
Module 6, data acquisition module, that is, electrical signal collection module 11, isolation filter module 12, wireless transmission are passed through with processing module 13
Card slot is integrated by module to be installed on bracket 2, thus forms a standalone probe device.Wherein, vacuum generation module 6 includes
Vacuum pump 9 and governor 10,10 one end of governor connect vacuum pump 9 to control its starting and operating rate, and mould occurs for vacuum
The block other end is connect with power supply with switch 8, after opening power knob manually, power supply can provide vacuum occur module 6 work it is used
Electricity.The telecommunications acquisition module 11 that wireless collection and communication unit 4 are included, isolation filter module 12, wireless transmission and data
Processing module 13 is installed on the correspondence card slot of bracket, and 11 one end of electrical signal collection module and contact unpolarizable electrode 3 connect
It connects, to acquisition electrode electrical potential information, one end connects isolation filter module 12, the single channel acquisition in electrical signal collection module 11
Block 14 electrical potential informations collected to denoise via isolation module 15 and eight rank Butterworth filter modules 16, spy after treatment
Measurement information carries out transmitting-receiving operation under the control of data processing module 18, via the wireless communication module 17 that passes, as shown in Figure 4.
Bracket 2 be carbon fiber made of hollow cylindrical shell, 2 inner surface of bracket be equipped with connection screw thread, screw thread with contact
3 bottom end mantle fiber of formula unpolarizable electrode is corresponding, for the dismounting of contact unpolarizable electrode 3, the macaroni of bracket 2 when quickly arranging
It is disposed towards face.
Vacuum pump 9 is miniature diaphragm vacuum pump, wherein miniature diaphragm vacuum pump includes direct current generator, motor driven diaphragm
The opening and closing for moving back and forth cooperation check valve forms vacuum effectiveness.Vaccum pump motor line accesses the speed regulation current potential in governor
Device, to control vacuum pump startup and its operating rate, governor power supply line is external in power-supply battery.
As shown in figure 5, the one end of the unpolarizable electrode is the electrode tips 23 of conductive fabric encapsulation, electrode tips
23 connect with electrode container 19, and copper-bath 21 is stored in electrode container 19, after copper-bath 21 penetrates into electrode tips 23,
Pureed conducting medium 5 is formed, so that entire electrode tips 23 are flexibility, the electrode that face is extruded in after being installed is connect
Contravention can be with rough face model deformation, thus with face good coupling；It is solid upwards from bottom in electrode container 19
Surely there is helical form copper wire 22, copper wire is infiltrated in copper-bath 21.
During actual detection, technical staff selectes the cloth that sensing point is arranged according to actual detection tunnel tunnel face situation
Seated position and sensing point quantity, as shown in Figure 1, each ten measuring points of every survey line are to lay two surveys line in tunnel tunnel face
Example, successively takes 20 wireless device for quick collecting 1 to be arranged.When individually quickly arranging wireless device for quick collecting 1 arrangement,
It takes out sealing ring 7 and is placed in selected measuring point, wireless 1 adsorption plane of device for quick collecting presses on face towards tunnel tunnel face
The sealing ring 7 of place mat, sealing ring 7 fill hole between up-and-down face and adsorption plane on wet face complete
Afterwards, the left side vacuum for opening power supply and switch 8 switchs, and controls as shown in Fig. 2, the governor 10 in module 6 occurs for vacuum
Vacuum pump 9 works, and forms negative pressure simultaneously in adsorption plane rapidly, the flexible electrode contact jaw 23 of contact unpolarizable electrode 3
Pressed and is penetrated into the copper-bath 21 stored in face and close-coupled therewith, electrode container 19 through porous ceramics cover board 20
The pureed conducting medium 5 that conductive fabric 24 wraps up, wireless device for quick collecting 1 is completed quick on face under gas pressure
Arrangement, the above wireless device for quick collecting 1 are used as measuring electrode M measuring point.In addition, with same way cloth at the abutment wall of tunnel rear portion
A device for quick collecting is set as infinity acquisition electrode as measuring electrode N measuring point.
The right side acquisition that power supply and switch 8 are opened after the completion of arrangement switchs, as shown in Fig. 2, wireless collection and communication module 4
It starts to work, waits the probe instructions of main computer unit to be tested.After tunnel side wall power supply, technical staff operates host equipment detection
Software, industrial personal computer transmission module send probe instructions, the reception of wireless communication module 17 probe instructions in detection device 1, at data
It manages module 18 and controls the electrical potential information that electrical signal collection module 11 acquires connected contact unpolarizable electrode 3, acquire signal
It is cached in electrical signal collection module 11 after the denoising of isolation filter module 12, by wireless under the control of data processing module 18
Communication module 17 is transmitted back to industrial personal computer, and industrial personal computer receives measuring point M and measuring point N electrical potential information, and acquisition signal V is subtracted reference potential
It is stored after d, to complete the data acquisition of the underground engineerings induced polarization advance geologic prediction such as tunnel.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not whole embodiments of the invention, not to limit
The system present invention, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in
Within protection scope of the present invention.
In addition to the technical characteristic described in the specification, remaining technical characteristic is technology known to those skilled in the art, in order to prominent
Innovative characteristics of the invention out, details are not described herein for above-mentioned technical characteristic.
Claims (6)
- The wireless Fast Acquisition System of advance geologic prediction 1. underground engineering polarizes characterized by comprisingBracket installs unpolarizable electrode in the side of bracket, and the other side is equipped with the vacuum for bracket to be adsorbed onto face and sends out Raw module；Sealing ring is used to support bracket set on face surface；Wireless collection and communication module are set on bracket, including wireless transport module and data acquisition module, data acquisition module It is connect with unpolarizable electrode；The one end of the unpolarizable electrode is the electrode tips of conductive fabric encapsulation, and electrode tips are connect with electrode container, electricity Copper-bath is stored in the cylinder of pole, after copper-bath penetrates into electrode tips, forms pureed conducting medium, so that entire electricity Pole contact jaw is flexibility；Helical form copper wire is fixed with upwards from bottom in electrode container, and copper wire is infiltrated in copper-bath；Electrode Cylinder Basolateral end is equipped with mantle fiber, and copper wire exposes at electrode container bottom to be connect with external cable；Data processing module, connect with data acquisition module and passes through wireless transport module the information of acquisition is transmitted to test Host；The bracket is the cylinder of boring, and the unpolarizable electrode is in cylinder and end is prominent from bracket, the electricity The porous ceramic film material cover board passed through for copper-bath is equipped between pole cylinder and electrode tips；Isolation filter module is equipped between the data acquisition module and data processing module, the data acquisition module is single-pass Road electric signal data sampling card；Multiple modules are set on bracket and integrate card slot, and module, data acquisition module, isolation filter occur for unpolarizable electrode, vacuum Module, wireless transport module and data processing module integrate card slot via module and are installed on bracket, form an independent spy Survey device；Data acquisition module one end is connect with unpolarizable electrode, and to acquisition electrode electrical potential information, one end connects isolation filter mould Block, the single channel capture card electrical potential information collected in data acquisition module carry out denoising, current potential after treatment Information carries out transmitting-receiving operation under the control of data processing module, via wireless transport module.
- 2. wireless Fast Acquisition System as described in claim 1, which is characterized in that the data processing module is set to bracket table Face or inside.
- 3. wireless Fast Acquisition System as described in claim 1, which is characterized in that it is vacuum pump that module, which occurs, for the vacuum, Vacuum pump connect with governor or to adjust the speed vacuum pump.
- 4. wireless Fast Acquisition System as described in claim 1, which is characterized in that material is scale stone in electrode tips Ink.
- 5. wireless Fast Acquisition System as described in claim 1, which is characterized in that the sealing ring is ethyl alcohol substrate cluster bean The prefabricated sealing ring of glue.
- The wireless Quick Acquisition method of advance geologic prediction 6. underground engineering polarizes, which is characterized in that using as in claim 1-5 Described in any item wireless Fast Acquisition Systems, specifically used method are as follows:1) multiple measuring points are selected in the face setting of underground engineering；2) sealing ring is placed on measuring point；3) module occurs by vacuum to be adsorbed on bracket absorption on face by sealing ring；4) data acquisition module measuring electrode electrical potential information is controlled by test host and feeds back to test host；Specific step is as follows:(1) technical staff, which carries, quickly arranges that wireless exploration device enters tunnel tunnel face region to be detected, according to practical area Face situation chooses measurement point number and position；(2) corresponding standalone probe device is taken according to selected measure-point amount, sealing ring is on wet face by uneven place The device integration module adsorption plane of rapid installation device is pressed inward against on face sealing ring after filling completely, opens power supply Module work occurs with governor control vacuum after switch, after hours to vacuum pump, wireless quickly arrangement apparatus is then fast Speed is arranged in face designated position, opens the test main computer unit to be received such as acquisition communication apparatus processing module switch immediately Probe instructions, are sequentially arranged on other faces that device for quick collecting is as M measuring point later, in addition, at the abutment wall of tunnel rear portion Arrange a device for quick collecting as N measuring point in the same manner；(3) probe software of test main computer unit is opened, host computer transmission module sends acquisition instructions after tunnel side wall power supply, visits It surveys device wireless transport module and successively receives instruction, processing module controls acquisition module and acquires connected contact unpolarizable electrode Electrical potential information, after acquiring data via isolation filter resume module, data feedback to industrial personal computer is stored by industrial personal computer immediately, each mould Block acquisition is synchronous to be carried out, and detection rate is greatly improved；(4) after the completion of data acquisition, 3-d inversion positioning imaging is carried out for the unfavorable geologic body being likely to occur, in forward modelling On the basis of through inverting iteration obtain the 3 D resistivity image of working face front geological body, realize the three-dimensional localization of water content.
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Effective date of registration: 20220316 Address after: 250101 Room 601, 6 / F, building a7-5, Hanyu Golden Valley, No. 7000, Jingshi Road, Jinan area, China (Shandong) pilot Free Trade Zone, Jinan City, Shandong Province Patentee after: Shandong bai20 Huitong Engineering Technology Co.,Ltd. Address before: 250061, No. ten, No. 17923, Lixia District, Ji'nan City, Shandong Province Patentee before: SHANDONG University |